3. Triangle ABC has angle measures as shown(a) What is the value of x? Show your work.(b) What is the measure of angle C? Show your workSo I think part A is 90 am I correct

a) triangle, sum of interior angles = 180
so
35 + 52 + 3(x + 2) = 180
87 + 3(x + 2) = 180
        3(x + 2) = 93
           x + 2  = 31
                 x  = 29

b)
<C = 3(x + 2) 
<C = 3(29 + 2) 
<C = 3(31) 
<C = 93